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XLAMP

MH FAMILY LED SOLDERING & HANDLING

and the Cree logo are registered trademarks, and

the Cree LED logo is a trademark, of Cree, Inc. XLamp

is a registered trademark of Cree LED. Other trademarks, product and company names are

the property of their respective owners and do not imply specific product and/or vendor endorsement, sponsorship or association. This document is

provided for informational purposes only and is not a warranty or a specification. For product specifications, please see the data sheets available at

www.cree-led.com.

CLD-AP193

REV 4

HANDLING XLAMP

MH FAMILY LEDS

Manual Handling

Use plastic, not metal, tweezers to grab XLamp MH Family LEDs at the sides of the substrate, i.e., at the base. Do not touch the optical

surface with tweezers. Do not touch the optical surface with fingers. Do not push on the optical surface.

Cree LED recommends the following at all times when handling XLamp MH Family LEDs or assemblies containing these LEDs:
•

Avoid putting mechanical stress on the LED optical surface.

•

Never touch the optical surface with fingers or sharp objects. The LED optical surface could become soiled or damaged, which would

affect the optical performance of the LED.

•

Cree LED recommends always handling MH Family LEDs with appropriate ESD grounding.

•

Cree LED recommends handling MH Family LEDs wearing clean, lint-free gloves.

Whenever possible, Cree LED recommends the use of a pick & place tool to remove XLamp MH Family LEDs from the factory tape and
reel packaging.

WRONG

CORRECT

Содержание XLamp MH Series

Страница 1: ...s please see the data sheets available at www cree led com CLD AP193 REV 4 1 XLamp MH Family LED INTRODUCTION This application note applies to XLamp MH Family LEDs which have order codes in the following format MHxxxx xxxx xxxxxxxxxxx This application note explains how XLamp MH Family LEDs and assemblies containing these LEDs should be handled during manufacturing Please read the entire document t...

Страница 2: ...Use plastic not metal tweezers to grab XLamp MH Family LEDs at the sides of the substrate i e at the base Do not touch the optical surface with tweezers Do not touch the optical surface with fingers Do not push on the optical surface Cree LED recommends the following at all times when handling XLamp MH Family LEDs or assemblies containing these LEDs Avoid putting mechanical stress on the LED optic...

Страница 3: ...d place nozzles coming into contact with silicone covered LED components Cree LED recommends nozzles be constructed of non metallic materials Cree LED and several of Cree LED s customers have had good success using nozzles fabricated from 95a urethane All dimensions in mm Measurement tolerance unless indicated otherwise 0 2 mm MHB x 3 300 300 400 5 000 05 0 1 5 000 05 0 1 7 000 7 000 n1 000 357 2 ...

Страница 4: ...MHD E MHD G 7 000 7 000 4 000 1 500 500 n1 000 400 3 300 300 500 SIZE TITLE OF REV SHEET C DRAWING NO DATE DATE DATE CHECK FINAL PROTECTIVE FINISH MATERIAL APPROVED DRAWN BY THIRD ANGLE PROJECTION SCALE A B C D 1 2 3 4 5 6 6 5 4 3 2 1 Phone 919 313 5300 Fax 919 313 5558 4600 Silicon Drive Durham N C 27703 UNAUTHORIZED PERSON WITHOUT THE WRITTEN CONSENT MAY NOT BE COPIED REPRODUCED OR DISCLOSED TO ...

Страница 5: ...NS ARE I MILLIMETERS AND AFTER TOLERANCE UNLESS SPE SURFACE FINISH 5 00 R2 26 4 78 80 50 25 80 25 97 4 78 50 50 2 78 4 78 4 78 RECOMMENDED PCB SOLDER PAD RECOMMENDED STENCIL PATTERN HATCHED AREA IS OPENING ALL DIMENSIONS ARE 1 Recommended Stencil Pattern Shaded Area Is Open DATE DATE DATE CHECK FINAL PROTECTIVE FINISH MATERIAL APPROVED DRAWN BY THIRD ANGLE PROJECTION A B C D 2 3 4 5 6 6 5 4 3 2 UN...

Страница 6: ...hermal pad that is larger than the XLamp MH Family LED itself In testing Cree LED has found such a solder pad to have insignificant impact on the resulting Ts measurement DATE DATE DATE CHECK FINAL PROTECTIVE FINISH MATERIAL APPROVED DRAWN BY THIRD ANGLE PROJECTION A B C D 6 5 4 3 2 X 5 XXX 25 XX 75 X 1 5 FOR SHEET METAL PARTS ONLY XX 25 XXX 125 X 5 UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN MIL...

Страница 7: ...w soldering may be done by a reflow oven or by placing the PCB on a hotplate and following the reflow soldering profile listed on page 9 Do not wave solder XLamp MH Family LEDs Do not hand solder XLamp MH Family LEDs Solder Paste Type Cree LED strongly recommends using no clean solder paste with XLamp MH Family LEDs so that cleaning the PCB after reflow soldering is not required Cree LED uses Kest...

Страница 8: ...sistency of the solder bond of several trial PCBs after reflow After shearing selected devices from the circuit board the solder should appear completely re flowed no solder grains evident The solder areas should show minimum evidence of voids on the backside of the package and the PCB Cleaning PCBs After Soldering Cree LED recommends using no clean solder paste so that flux cleaning is not necess...

Страница 9: ...r of the solder paste used and therefore it is the lamp or luminaire manufacturer s responsibility to determine applicable soldering requirements Note that this general guideline may not apply to all PCB designs and configurations of reflow soldering equipment Profile Feature Lead Free Solder Average Ramp Up Rate Tsmax to Tp 1 2 C second Preheat Temperature Min Tsmin 120 C Preheat Temperature Max ...

Страница 10: ...materials with LEDs You should also consult your regional Cree LED Field Applications Engineer Recommended Chemicals In testing Cree LED has found the following chemicals to be safe to use with XLamp MH Family LEDs Water Isopropyl alcohol IPA Chemicals Tested as Harmful In general subject to the specifics in Cree LED s Chemical Compatibility Application Note Cree LED has found certain chemicals to...

Страница 11: ...iation This document is provided for informational purposes only and is not a warranty or a specification For product specifications please see the data sheets available at www cree led com CLD AP193 REV 4 11 ASSEMBLY STORAGE HANDLING Do not stack PCBs or assemblies containing XLamp MH Family LEDs so that anything rests on the LED optical surface PCBs or assemblies containing XLamp MH Family LEDs ...

Страница 12: ...Standard Except as noted all dimensions in mm in MHB x TITLE DATE DATE DATE CHECK MATERIAL APPROVED DRAWN BY THIRD ANGLE PROJECTION FOR SHEET METAL PARTS ONLY XX 01 XXX 005 X 5 UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES AND AFTER FINISH TOLERANCE UNLESS SPECIFIED A B C D 1 2 3 4 5 6 A B C D Phone 919 313 5300 Fax 919 313 5558 4600 Silicon Drive Durham N C 27703 UNAUTHORIZED PERSON WITHOUT...

Страница 13: ...RTS ONLY XX 01 XXX 005 X 5 UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES AND AFTER FINISH TOLERANCE UNLESS SPECIFIED SCALE A B C D 1 2 3 4 5 6 A B C D Phone 919 313 5300 Fax 919 313 5558 4600 Silicon Drive Durham N C 27703 UNAUTHORIZED PERSON WITHOUT THE WRITTEN CONSENT MAY NOT BE COPIED REPRODUCED OR DISCLOSED TO ANY CONFIDENTIAL INFORMATION OF CREE INC THIS PLOT CONTANED WITHIN ARE THE PRO...

Страница 14: ...cifications please see the data sheets available at www cree led com CLD AP193 REV 4 14 PACKAGING LABELS The diagrams below show the packaging and labels Cree LED uses to ship XLamp MH Family LEDs XLamp MH Family LEDs are shipped in tape loaded on a reel Each box contains only one reel in a moisture barrier bag Label with Cree Bin Code Qty Lot Vacuum Sealed Moisture Barrier Bag Dessicant inside ba...

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